Rice-machine



I (No Model.)

P. J. SYME.

. I RICE MACHINE.

1 I0.56 5,4t 51. I Patented June 28, 1887.

Hlllllllll WITNESSES! INVENTOR:

ATTORNEYS.

N. PETERS. Phmum npner. nnnnn nnn a UNITED STATES PATENT OFFICE.

FREDERICK J. SYME, OF NEW ORLEANS, LOUISIANA.

RICE-MACHINE.

SPECIFICATION forming part of Letters Patent No. 365,451, dated June 28, 1887.

Application filed August 5,18%. Serial No. 210,114. (No model.)

To all whom it 11mg concern.-

Be it known that I, FREDERICK J. SYME, of New Orleans, in the parish of Orleans and State of Louisiana, have invented a new and useful Improvement in Rice-Machines, of which the following is a specification.

This invention is an improved machine for treating rice to remove therefrom the cuticle, or. that covering of the grain immediately within the hull.

The invention has for an object to provide a simple machine by which to remove such cuticle without to any considerable extent crushing or breaking the grains, and to accomplish such result expeditiously and thoroughly.

'The invention consists in certain features of construction and novel combinations of parts, as will be described, and pointed out in the elaims. A

In the drawings, Figure 1 is a vertical section of my improved ricemachine. Fig. 2 shows another form of the same in which the mechanism by which the plug or shaft is operated is arranged below the revolving bowl.

The cylinder A is fixed to a suitable support or frame. The bowl B is supported in bearings so it may be reasily revolved. This is usually accomplished by securing said bowl on a shaft, b, which latter is journaled in bearings,asshown, and hasaband-pulley,by which it may be geared with the drive power. It is i not, material, however, how the said bowl is geared with thedriving power, and the connection might, if so desired, be effected by the construction shown in Fig. 2,in which the bowl has formed on it a ring of gear-teeth meshed by a bevel-gear on a drive-shaft. It is also usual to provide the cylinder A witha discharge-chute, a, through which the treated rice may be discharged. As the bowl is re volved, the rice masses up along the side of the cylinder A by centrifugal action, and it is desirable that a circulation upward and outward from the bottom and inward and downward from the top should be obtained.

In the use of machines constructed with a revolving bowl and a cylinder, substantially as described, ithas been demonstrated that the circulation of the rice, &c., upward and outward from the bottom and inward and downward from the top will beiuipeded or retarded down into the cylinder and close to the bowl;

but manifestl y it might extend up through the bowl, as is shown in Fig. 2. Now, this plug,

as-will be seen, prevents the rice from massing at the center of the cylinder, and thereby causes the portion of said rice distant from the inner surface of the cylinder to move downward, as the outer part thereof is forced upward, and this circulation effects an attrition and rubbing of the rice together, which accomplishes thoroughly the desired result. By preferen ce, I j ournal this plug or shaft i n bearings, so that it may be revolved, andin practice revolve it by suitable connection, which may bewith the drive mechanism shown and in adireetion the reverse of that of the bowl. By so revolving the plug it effects astoppage and breaking up of the circular movement of the inner portion of the grain and facilitates the downward movement thereof, as will be understood.

While ordinarily the plug, as described and as shown in Fig. 2, may give good results, it maybe preferred to provide said plug with a spiral rib, D, as shown in Fig. 1. In operation this spiral rib will'engage the inner portion of the rice and force it positively downward, as will be readily understood from the construction shown. This spiral rib .may be continuous or unbroken, or may bebroken out at intervals, forming a number of sections or .wings, as will be readily understood.

While the arrangement of the mechanism shown in Fig. 1 may be preferred where there is abundance of room overhead, that shown in Fig. 2may be preferable in locations where the head room is limited.

In Fig. 2 the extension of the bowl is hollow and the plug extends up therethrough, and such plug and bowl are driven in opposite directions by a shaft and abevel gear-wheel mesh ing with bevel-gears on the bowl and plug.

Manifestly belt gearing might be substituted for the bevel-gearing shown in Fig. 2. This mi ghtbe effected by arranging the powershaft parallel to shaft 0 and connecting it with shaft 0 and with the bowl by belts, one of such belts being crossed in order that the bowl and shaft 0 may be revolved in opposite directions.

\Vhile the machine is especially intended and designed for the treatment ofrice, it manifestly may be used in the treatment of Wheat and other grain.

Having thus described my invention, what I claim as new is- 1. The combination of the cylinder, the revoluble bowl, supports therefor, and a plug extended centrally into said cylinder, as and for the purposes specified.

2. The combination of a cylinder, a revoluble bowl, supports therefor, a plug extended centrally into the cylinder, and means whereby 20 said plug is revolvedin adirection the reverse of the bowl, substantially as set forth.

3. The herein-described machine, consisting of the cylinder, the bowl, the plug having a spiral rib,and mechanism,substantially such as 2 described, whereby said bowl and plug are revolved in opposite directions, as and for the purposes specified.

FREDERICK J. SYME.

iVitnesses:

P. B. TURPIN, Some: 0. KuMoN. 

